Haze wrote:But when I edit this song titles in MPFreaker, down to just Song title, in the Song title colum, MPFreaker edits the Artist to become this:

Artist - Album - Tracknumber - Song title

Why does it do that???? The Artist field was empty before.

When MPFreaker encounters an MP3 with a missing song title tag or artist tag, it adopts the song's filename as the missing item, in the hope that useful information might be contained in the song's filename. It does strip the ".mp3", if present, as you noticed.

If what you're wanting is something to take your existing filenames and fully parse and apply them as Artist, Album, Track, and Title tags, you'll need to use another program before using MPFreaker. MPFreaker relies upon there existing proper Song Title and Artist tags (and optionally an Album title tag) to do its work.